In this paper we study lightlike surfaces of Minkowski 3- space such that they have degenerate or non-degenerate planar normal sections. We first show that every lightlike surface of Minkowski 3- space has degenerate planar normal sections. Then we study lightlike surfaces with non-degenerate planar normal sections and obtain a characterization for such lightlike surfaces.
C1 [Erdogan, Feyza Esra] Adiyaman Univ, Fac Arts & Sci, Dept Math, TR-02040 ADIYAMAN, Turkey.
[Sabin, Bayram; Gunes, Rifat] Inonu Univ, Dept Math, TR-44280 Malatya, Turkey.